Also I like the glass carafes love, which then optimally for the hygiene and if you like I can be the plastic bottles can- not stand in the dishwasher cleaned regularly. Criticism is the opening the device after bubbling for me. That hooked me too much. The horizontal lever mechanism for releasing the pressure and opening the same. This could possibly be handled more easily.
Besides, I can understand one review that speculated whether it is here at Amazon to demonstration. My device and the bottle also had not traceable fingerprints that feeds a continuous in this direction suspected. This slight contamination was for me but no exchange basis. It could have also only been a curious or more curious in the marketing chain.
That's why from me full marks!